search query: @author Viljakainen, Esa Matti Juhani / total: 1
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| title | year | author | ||
| 1. | 1975 | Viljakainen, Esa Matti Juhani |
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| title | year | author | ||
| 1. | 1975 | Viljakainen, Esa Matti Juhani |